13638195428

Names of 13638195428

• Cardinal: 13638195428 can be written as Thirteen billion, six hundred thirty-eight million, one hundred ninety-five thousand, four hundred twenty-eight.

Scientific notation

• Scientific notation: 1.3638195428 × 10¹⁰

Factors of 13638195428

• Number of distinct prime factors ω(n): 5
• Total number of prime factors Ω(n): 7
• Sum of prime factors: 934

Divisors of 13638195428

• Number of divisors d(n): 72
• Complete list of divisors:
  1 2 4 11 13 22 26 31 44 52 62 124 143 286 341 403 572 682 806 877 1364 1612 1754 3508 4433 8866 9647 11401 17732 19294 22802 27187 38588 45604 54374 108748 125411 250822 299057 353431 501644 598114 706862 769129 1196228 1413724 1538258 3076516 3887741 7775482 8460419 9998677 15550964 16920838 19997354 23842999 33841676 39994708 47685998 95371996 109985447 219970894 262272989 309958987 439941788 524545978 619917974 1049091956 1239835948 3409548857 6819097714 13638195428
• Sum of all divisors σ(n): 28976903424
• Sum of proper divisors (its aliquot sum) s(n): 15338707996
• 13638195428 is an abundant number, because the sum of its proper divisors (15338707996) is greater than itself. Its abundance is 1700512568

Bases of 13638195428

• Binary: 1100101100111001100101100011100100₂
• Hexadecimal: 0x32CE658E4
• Base-36: 69JTUXW

Squares and roots of 13638195428

• 13638195428 squared (13638195428²) is 186000374532320103184
• 13638195428 cubed (13638195428³) is 2536709457552975669476517042752
• The square root of 13638195428 is 116782.6846240487
• The cube root of 13638195428 is 2389.1988834753

Scales and comparisons

• 13,638,195,428 seconds is equal to 433 years, 33 weeks, 6 days, 11 hours, 37 minutes, 8 seconds.
• To count from 1 to 13,638,195,428 would take you about eight hundred sixty-seven years!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 13638195428 cubic inches would be around 199.1 feet tall.

Recreational maths with 13638195428

• 13638195428 backwards is 82459183631
• The number of decimal digits it has is: 11
• The sum of 13638195428's digits is 50
• More coming soon!